Big Brother is a reality television show where, in each series, a group of people live together in the Big Brother House, isolated from the outside world but continuously watched by television cameras. Each series lasts for around three months, and there are usually fewer than 16 participants.

The housemates try to win a cash prize by avoiding periodic evictions from the house.

There ia also A Celebrity Big Brother where celebritys are put into the big brother house for no longer then 2-3 weeks.
It Can Be Good But Usualy Dull For example:

Day 22 12:00 pm In the big brother house. After A Day Over arguing over crushed jaffa cakes, Katie Goes to bed.

A horrible reality show on CBS that the network has yet to catch on has low ratings that no one wants to watch. Twelve shameless "houseguests" of mostly twenty-somethings are spied upon 24-7 in the “Big Brother house” on the CBS lot and seen scheming against those contestants they dislike. It's basically a popularity contest. A competition is held every week to determine the Head of Household who will nominate two candidates for eviction. Each week the cast votes to oust the next person from the Big Brother House. On the last episode, the cast votes for the $500,000 winner.

Seeing these pathetic, hopeless people on Big Brother who are desperate for 10-minutes of fame or shame makes me realize my life isn’t so bad after all. The funniest thing is not the contestants, but that CBS thinks this is actually entertaining and that Americans have no life but to sit down and watch this garbage.

Its the best TV show ever !!
It originated in the UK and other countrys copyed.
Its excellent!
Members of the public usually about 12(others can be added throughtout) go into a house. They are allowed no contact with the outside world. It is usuaully on for about 12 weeks.
The public wvote who they want out and who wins!
Pete won this year. 2006.Which was bigbrother 7

Mob: Omg did you see bigbrother last night ?
another member of the mob: yes omg ! it was so funny!

A reality TV show which is infact one of the most entertaining TV shows.

But it also makes sniffs, squares and people that think they are above everyone else feel better as they can go around complaining that it is dumbing down the world and it is replacing good TV shows. But if they pull their heads from their stupid arses and see that the rest of TV is shite, there are still dramas being made and reality TV has been around since the 60's maybe they will relise that they retarded.

Stiff 1:Hey that big brother shite is dumbing down the country and turing teens into retards
Stiff 2: Yes it is. If my son said he would watch it I would drown the bastard.
Normal person: Go fuck your selfs you stupid retards.